So the number of ways N people can be arranged in a straight line if 2 particular people must be separated
Question
So the number of ways N people can be arranged in a straight line if 2 particular people must be separated
Solution
To solve this problem, we can use the concept of permutations and combinations in probability.
Step 1: Consider the two people who must be separated as one entity. So, we now have (N-1) entities.
Step 2: These (N-1) entities can be arranged in (N-1)! ways.
Step 3: The two people who are considere
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